(08.06 MC)

Mike and his friends bought cheese wafers for $2 per packet and chocolate wafers for $1 per packet at a carnival. They spent a total of $25 to buy a total of 20 packets of wafers of the two varieties.

Part A: Write a system of equations that can be solved to find the number of packets of cheese wafers and the number of packets of chocolate wafers that Mike and his friends bought at the carnival. Define the variables used in the equations. (5 points)

Part B: How many packets of chocolate wafers and cheese wafers did they buy? Explain how you got the answer and why you selected a particular method to get the answer. (5 points)

someone please actually explain this to me. maybe even use real words this time?! this is my last assignment for the year and here I am, wet keyboard from tears, breaking my pencil into tiny bits because of this one algebra question. if I get a bad score on this quiz i'm actually going to have a full-on meltdown! someone for the love of god explain this to me in a way that my adhd brain will understand before I throw myself into the sun. much thanks! :,)

Answers

Answer 1
A. 2x+y=25; x+y=20
x represents cheese wafers and y represents chocolate wafers.

B. I will choose elimination since there is y and y. I can multiply one equation by -1 to get y and -y, which cancels out.
2x+y=25
-x-y=-20

Add equations
x=5

Plug x in
5+y=20
y=15

Final answer: 5 cheese wafers, 15 chocolate wafers

Related Questions

David wanted to go on an amusement park ride. A sign posted at the entrance read “You must be greater than 42 inches tall and no more than 57 inches tall for this ride.” Which inequality would model the height, x, required for this amusement park ride?

Answers

Answer:

42 < x less than or equal to 57

Step-by-step explanation:

The inequality that would model the height, x, required for this amusement park ride is 57 > h > 42.

What is inequality?

A statement of an order relationship-greater than, greater than or equal to, less than, less than or equal to- between two numbers or algebraic equations

Now it is given that,

Lower limit of height must be greater than 42 inches

Upper limit  of height must be less than 57 inches

If h is the height used for model.

Thus, h < 57 inches

and, h > 42 inches

Therefore the inequality model will be,

57 > h > 42

Thus, the inequality that would model the height, x, required for this amusement park ride is 57 > h > 42.

To learn more about inequality :

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HALP PLS NO LINKS OR FILES PLS
SCREENSHOT BELOW!!!

Answers

Answer:

12 and 13

Step-by-step explanation:

Thomas bought 100 folders he paid $50 for all the folders He said every folder cost five cents do you agree

Answers

Answer:

No, each folder costs 50 cents.

Step-by-step explanation:

0.50*100= 50

Find the x intercepts of the graph of -6x + 5y =24. State your answers as while numbers or as improper fractions in simplest form.

Answers

Answer:

x-intercept: -4

y-intercept: 24/5

Step-by-step explanation:

Firstly you have to isolate the y:

-6x + 5y = 24

5y = 6x + 24

y = (6x +24)/5

Now, just think about the graph: when the function touch the x-axis, the value of y is equal to 0, and when the function touch the y-axis, the value of x is 0, so just put they in the function:

y = (6•0 + 24)/5

y = 24/5

0 = (6x + 24)/5

5•0 = 6x +24

0 = 6x +24

-6x = 24

x = 24/-6

x = -4

Finding Percents Using Decimals 1.8 of 240

Answers

Answer:

I think 4.32...............

Please help me in tho hard question!!!

Answers

Answer:

x=26

m∠HJN=53°

Step-by-step explanation:

The two angles share a right angle, meaning they are complementary and have a sum of 90°.

[tex](2x+1)+37=90[/tex]

[tex]2x+38=90[/tex]

[tex]2x=52[/tex]

[tex]x=26[/tex]

If x=26,

m∠HJN

[tex]=2(26)+1[/tex]

[tex]=52+1[/tex]

[tex]=53[/tex]

Please help.
Find the value of x

Answers

Answer:

The value of x is 18

Step-by-step explanation:

24 x 15 is 360. ( x + 12 ) x 12 = 360 as well. So, 360÷12=30. 30-12 = 18. So the full equation is (18+12)x12=24×15 which are both equal to 360.

plz plz answer this 10pts

Answers

Answer:

PART A

$4.25×2.9$12.325

PART B

cost of milk chocolate=$5.15×1.6$8.24

total cost =12.325+8.24

$20.565

hope it helps

stay safe healthy and happy.

Answer:

Part A: $12.325

Part B: $20.565

Step-by-step explanation:

PART A:

To find the answer, we multiply 2.9 and 4.25 together: 2.9 * 4.25 = 12.325

The cost of 2.9 pounds of dark chocolate is $12.325

PART B:

To find the answer, we multiply 1.6 and 5.15 together: 1.6 * 5.15 = 8.24

After that, to find the cost of the dark and milk chocolate together, we add up the two answers: 12.325 + 8.24 = 20.565

The total cost of the milk and dark chocolate is $20.565

Note: You might need to round it up. In this case, Part A is $12.33 and Part B is $20.57

We had a surprise party for Grandmama she was very surprised. Find the error in the sentence

Answers

Answer:

There needs to be a (.) or an (;)

Step-by-step explanation:

The measure of an angle is 5. What is the measure of its complementary angle?​

Answers

Answer:

85°

Step-by-step explanation:

90° - 5° = 85°

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Find the length of the following sides:
DF
AB
EF

Answers

Answer:

DF) = 10

AB) = 5

EF) = 12.5

Step-by-step explanation:

For length AB

[tex]3^{2} +4^{2} = AB^{2}[/tex]   -> 9+16=[tex]\sqrt{25}[/tex] -> 5

For length DF

We know that AD is 2.5 times smaller than DE (7.5 / 3)

Now we can use that to determine length DF

BD = 4, DF = 4*2.5 = 10

using the Pythagorean theorem, you can find EF:

[tex]DE^{2} +DF^{2} =EF^{2}[/tex]

[tex]7.5^{2}+ 10^{2} =12.5[/tex]

ILL GIVE YOU BRAINLIEST!! 33 POINTS!!!


(ONLY IF YOU GET IT CORRECT)

Answers

Answer:

80 ft

Step-by-step explanation:

the length of an arc is equal to the degree the arc makes

Answer:

A. 28π/9 ft

Step-by-step explanation:

Arc length is:

2πr*80°/360° ft = 4π*7/9 ft =28π/9 ft

Correct choice is A

WILL MARK BRAINLIEST!!! Plz help me with my math!

y varies directly with x. If y = -4 when x = 2, find y when x = -6.

Answers

Answer:

y = 12

Step-by-step explanation:

y = kx

-4 = k * 2

k = -4/2 = -2

y = -2x

y = -2 * (-6)

y = 12

6 + y= -8 ????????????????

Answers

Answer:

y = -14

Step-by-step explanation:

6 + y = -8

Subtract 6 from both sides to get y by itself.

y = -14.

Proof:

6 + y = -8

Substitute the variable.

6 + (-14) = -8

Add the negative/Subtract.

-8 = -8.

Answer:

y=−14

Step-by-step explanation:

Let's solve your equation step-by-step.

6+y=−8

Step 1: Simplify both sides of the equation.

y+6=−8

Step 2: Subtract 6 from both sides.

y+6−6=−8−6

y=−14

brainliest please?


Who could help me please and thank you

Only answer if you know how to do the equation

Answers

Let's find the slope of the line passing through it :

[tex] \boxed{ slope = \frac{y_2-y_1}{ x_2- x_1} }[/tex]

[tex] \dfrac{ -5 - ( - 6)}{0 - ( - 5)} [/tex]

[tex] \dfrac{1}{5} [/tex]

Now, we know, equation of a line is :

[tex]\longrightarrow y = mx + b[/tex]

where,

m represents the slope

Therefore,

[tex]\longrightarrow \: y = \dfrac{1}{5} x + b[/tex]

let's put the value of x and y from the first coordinates .

[tex]y = \dfrac{x}{5} + b[/tex]

[tex] - 5 = \dfrac{0}{5} + b[/tex]

[tex]b = - 5[/tex]

Hence, we got the equation of line as :

[tex]y = \dfrac{x}{5} - 5[/tex]

or

[tex]5y = x - 25[/tex]

_____________________________

[tex]\mathrm{ ☠ \: TeeNForeveR \:☠ }[/tex]

Bill had 5 tests over the marking period. He knows he is receiving a 85 on his report card. He was looking back at his test and only has four grades: 80, 90, 100, 85. What was the score of the missing test? Please no silly answers or links ill report you.

Answers

Answer:

70

Step-by-step explanation:

(Not the most streamlined way but.)

Knowing that if he had 5 tests, and a mark of 85, we can determine the total average grade Bill received. 85*5=425

Then subtract the known grades

425-(90+85+100+80)=x

425-(355)=x

70=x

Bill would have scored 70 on that 5th test

School ends at 2:50 P.M. The school day is 6 hours and five minutes long. What time does school begin?

Answers

Answer:

School begins at 8:45

Step-by-step explanation:

take 5 away from 50 and get 45

take 6 away from 2 on a clock is 8

Fahad is 140 cm tall. Fareed is 1090 mm tall.
Who is taller? How much taller?

Answers

Answer:

Fahad is taller with 31 centimeters

Step-by-step explanation:

1090mm=109cm

Fahad is taller than Fareed by 31 centimeters.

1090 mm = 109 cm

140 cm - 109 cm = 31 cm

Hope this helps; please mark brainliest!

Have an amazing day!


Josh orders 12 soccer jerseys for his team, including his coach. He pays a total
of R594,60 for the jerseys. What did each jersey cost?​

Answers

Answer:

4955

Step-by-step explanation:

soccer jerseys--> 12

total--> R 59460

= 59460 divided by 12

= 4955

Ans: Each jersey costs R 4955.

thenks and mark me brainliestt pls :))

There is a hole that is 6ft deep and has a diameter of 5t how much dirt is in the hole?

Answers

117.81 ft

I used the cylinder volume formula
Hope this helps!!!

If the gradient of the tangent to
[tex]y = \sqrt{x} [/tex]
is
[tex] \frac{1}{6} [/tex]
at point A, find the coordinates of A.​

Answers

Answer:

Point A(9, 3)

General Formulas and Concepts:

Pre-Algebra  

Order of Operations: BPEMDAS  

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties  

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I  

Coordinates (x, y) Functions Function Notation Terms/Coefficients Anything to the 0th power is 1Exponential Rule [Rewrite]:                                                                              [tex]\displaystyle b^{-m} = \frac{1}{b^m}[/tex] Exponential Rule [Root Rewrite]:                                                                     [tex]\displaystyle \sqrt[n]{x} = x^{\frac{1}{n}}[/tex]  

Calculus  

Derivatives  

Derivative Notation  

Derivative of a constant is 0  

Basic Power Rule:  

f(x) = cxⁿ f’(x) = c·nxⁿ⁻¹

Derivative Rule [Chain Rule]:                                                                                    [tex]\displaystyle \frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)[/tex]

Step-by-step explanation:

Step 1: Define

Identify

[tex]\displaystyle y = \sqrt{x}[/tex]

[tex]\displaystyle y' = \frac{1}{6}[/tex]

Step 2: Differentiate

[Function] Rewrite [Exponential Rule - Root Rewrite]:                                   [tex]\displaystyle y = x^{\frac{1}{2}}[/tex]Basic Power Rule:                                                                                             [tex]\displaystyle y' = \frac{1}{2}x^{\frac{1}{2} - 1}[/tex]Simplify:                                                                                                             [tex]\displaystyle y' = \frac{1}{2}x^{-\frac{1}{2}}[/tex][Derivative] Rewrite [Exponential Rule - Rewrite]:                                          [tex]\displaystyle y' = \frac{1}{2x^{\frac{1}{2}}}[/tex][Derivative] Rewrite [Exponential Rule - Root Rewrite]:                                 [tex]\displaystyle y' = \frac{1}{2\sqrt{x}}[/tex]

Step 3: Solve

Find coordinates of A.

x-coordinate

Substitute in y' [Derivative]:                                                                             [tex]\displaystyle \frac{1}{6} = \frac{1}{2\sqrt{x}}[/tex][Multiplication Property of Equality] Multiply 2 on both sides:                      [tex]\displaystyle \frac{1}{3} = \frac{1}{\sqrt{x}}[/tex][Multiplication Property of Equality] Cross-multiply:                                      [tex]\displaystyle \sqrt{x} = 3[/tex][Equality Property] Square both sides:                                                           [tex]\displaystyle x = 9[/tex]

y-coordinate

Substitute in x [Function]:                                                                                [tex]\displaystyle y = \sqrt{9}[/tex][√Radical] Evaluate:                                                                                         [tex]\displaystyle y = 3[/tex]

∴ Coordinates of A is (9, 3).

Topic: AP Calculus AB/BC (Calculus I/II)

Unit: Derivatives

Book: College Calculus 10e


[tex]54 \sqrt{25} [/tex]

Answers

Answer:

270

Step-by-step explanation:

[tex]\sqrt{25} = 5[/tex]

54 * 5

270

The anser is 270

Expelskfud

What is the approximate volume of a cone with a height of 12 inches and a diameter of 10 inches?
Use 3.14 for 7 and round the answer to the nearest whole number.

Answers

Answer:

314

Step-by-step explanation:

V=πr^2(h/3)

diameter is 10 so /2 and you get radius

plug values in and solve for x

Answer:

314

yea im sure thats the answear

Drag a company name into each box to show the total cost from least to greatest.​

Answers

Answer:

Company A:

$3  each6% for shipping150*3*1.06 = $477 total cost

Company B:

$3.10 each4% for shipping150*3.1*1.04 = $483.60 total cost

Company C:

$3.20 eachNo shipping charge150*3.2 = $480 total cost

Least cost         |        Medium cost     |     Greatest cost

Company A       |          Company C     |      Company B

Lily is 90 cm tall. If Anika is 3/5 of the height of Lily, and Sadaf is 4/3 of the height of Anika, how tall is Sadaf?

Answers

Sadaf is 120cm tall I believe

The record high temperature is 124 F the record low temperature for the same state is -8. What is the range integer? (Write and solve equation). Help please :(

Answers

Answer:

here it's 124°F so if we subtract 8 in 124 it will be 124-8= 114°F

now the range = height - lowest = 124°- 114°F = 8° F

Evaluate Vb2 - 4ac when a = -2, b = 8 and c = 1/2 Write your answer in simplest form and in decimal form rounded to the
nearest hundredth
Simplest form:
Decimal form:

Answers

Nauru jejejeje r rhrhhr ejejejr rjrjrjr th

Find the selling price
Cost of the computer; $1,850.00
Markup: 75%

Answers

Answer:

2466.67

Step-by-step explanation:

1850/.75=2466.67

The cost of selling price of the computer is, $3,237.5

What is mean by Percentage?

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

Given that;

Cost of the computer = $1,850.00

Markup = 75%

Now,

The cost of selling price of the computer is,

⇒ $1,850 + 75% of $1,850

⇒ $1850 + 75 /100 × $1850

⇒ $1850 + $1387.5

⇒ $3,237.5

Learn more about the percent visit:

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BRAINLY PEOPLE HELP!!!

Answers

Answer:

A)

Step-by-step explanation:

Hope I helped! Ask me anything if you have questions! Brainiest plz. Hope You make a 100%! Have a nice day! -Amelia♥

Please say whether they are equivalent or not

Answers

Answer:

Nothing is here. You may need to reupload question.

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